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-rw-r--r--arch/x86/include/asm/pci.h2
-rw-r--r--arch/x86/kernel/pci-dma.c64
-rw-r--r--arch/x86/kernel/setup.c1
-rw-r--r--arch/x86/pci/direct.c17
-rw-r--r--arch/x86/pci/irq.c4
-rw-r--r--arch/x86/pci/mmconfig-shared.c10
6 files changed, 19 insertions, 79 deletions
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index 67612922963..d498943b906 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -135,8 +135,6 @@ void default_teardown_msi_irqs(struct pci_dev *dev);
#include "pci_64.h"
#endif
-void dma32_reserve_bootmem(void);
-
/* implement the pci_ DMA API in terms of the generic device dma_ one */
#include <asm-generic/pci-dma-compat.h>
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 9ea999a4dcc..b49d00da2ae 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -68,74 +68,10 @@ int dma_set_mask(struct device *dev, u64 mask)
}
EXPORT_SYMBOL(dma_set_mask);
-#if defined(CONFIG_X86_64) && !defined(CONFIG_NUMA)
-static __initdata void *dma32_bootmem_ptr;
-static unsigned long dma32_bootmem_size __initdata = (128ULL<<20);
-
-static int __init parse_dma32_size_opt(char *p)
-{
- if (!p)
- return -EINVAL;
- dma32_bootmem_size = memparse(p, &p);
- return 0;
-}
-early_param("dma32_size", parse_dma32_size_opt);
-
-void __init dma32_reserve_bootmem(void)
-{
- unsigned long size, align;
- if (max_pfn <= MAX_DMA32_PFN)
- return;
-
- /*
- * check aperture_64.c allocate_aperture() for reason about
- * using 512M as goal
- */
- align = 64ULL<<20;
- size = roundup(dma32_bootmem_size, align);
- dma32_bootmem_ptr = __alloc_bootmem_nopanic(size, align,
- 512ULL<<20);
- /*
- * Kmemleak should not scan this block as it may not be mapped via the
- * kernel direct mapping.
- */
- kmemleak_ignore(dma32_bootmem_ptr);
- if (dma32_bootmem_ptr)
- dma32_bootmem_size = size;
- else
- dma32_bootmem_size = 0;
-}
-static void __init dma32_free_bootmem(void)
-{
-
- if (max_pfn <= MAX_DMA32_PFN)
- return;
-
- if (!dma32_bootmem_ptr)
- return;
-
- free_bootmem(__pa(dma32_bootmem_ptr), dma32_bootmem_size);
-
- dma32_bootmem_ptr = NULL;
- dma32_bootmem_size = 0;
-}
-#else
-void __init dma32_reserve_bootmem(void)
-{
-}
-static void __init dma32_free_bootmem(void)
-{
-}
-
-#endif
-
void __init pci_iommu_alloc(void)
{
struct iommu_table_entry *p;
- /* free the range so iommu could get some range less than 4G */
- dma32_free_bootmem();
-
sort_iommu_table(__iommu_table, __iommu_table_end);
check_iommu_entries(__iommu_table, __iommu_table_end);
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index c3050af9306..605e5ae19c7 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -964,7 +964,6 @@ void __init setup_arch(char **cmdline_p)
initmem_init();
memblock_find_dma_reserve();
- dma32_reserve_bootmem();
#ifdef CONFIG_KVM_CLOCK
kvmclock_init();
diff --git a/arch/x86/pci/direct.c b/arch/x86/pci/direct.c
index bd33620b007..e6fd8473fb7 100644
--- a/arch/x86/pci/direct.c
+++ b/arch/x86/pci/direct.c
@@ -280,12 +280,9 @@ void __init pci_direct_init(int type)
int __init pci_direct_probe(void)
{
- struct resource *region, *region2;
-
if ((pci_probe & PCI_PROBE_CONF1) == 0)
goto type2;
- region = request_region(0xCF8, 8, "PCI conf1");
- if (!region)
+ if (!request_region(0xCF8, 8, "PCI conf1"))
goto type2;
if (pci_check_type1()) {
@@ -293,16 +290,14 @@ int __init pci_direct_probe(void)
port_cf9_safe = true;
return 1;
}
- release_resource(region);
+ release_region(0xCF8, 8);
type2:
if ((pci_probe & PCI_PROBE_CONF2) == 0)
return 0;
- region = request_region(0xCF8, 4, "PCI conf2");
- if (!region)
+ if (!request_region(0xCF8, 4, "PCI conf2"))
return 0;
- region2 = request_region(0xC000, 0x1000, "PCI conf2");
- if (!region2)
+ if (!request_region(0xC000, 0x1000, "PCI conf2"))
goto fail2;
if (pci_check_type2()) {
@@ -311,8 +306,8 @@ int __init pci_direct_probe(void)
return 2;
}
- release_resource(region2);
+ release_region(0xC000, 0x1000);
fail2:
- release_resource(region);
+ release_region(0xCF8, 4);
return 0;
}
diff --git a/arch/x86/pci/irq.c b/arch/x86/pci/irq.c
index 8201165bae2..372e9b8989b 100644
--- a/arch/x86/pci/irq.c
+++ b/arch/x86/pci/irq.c
@@ -602,7 +602,9 @@ static __init int intel_router_probe(struct irq_router *r, struct pci_dev *route
|| (device >= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MIN &&
device <= PCI_DEVICE_ID_INTEL_COUGARPOINT_LPC_MAX)
|| (device >= PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MIN &&
- device <= PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MAX)) {
+ device <= PCI_DEVICE_ID_INTEL_DH89XXCC_LPC_MAX)
+ || (device >= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MIN &&
+ device <= PCI_DEVICE_ID_INTEL_PANTHERPOINT_LPC_MAX)) {
r->name = "PIIX/ICH";
r->get = pirq_piix_get;
r->set = pirq_piix_set;
diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c
index e282886616a..750c346ef50 100644
--- a/arch/x86/pci/mmconfig-shared.c
+++ b/arch/x86/pci/mmconfig-shared.c
@@ -606,6 +606,16 @@ static void __init __pci_mmcfg_init(int early)
if (list_empty(&pci_mmcfg_list))
return;
+ if (pcibios_last_bus < 0) {
+ const struct pci_mmcfg_region *cfg;
+
+ list_for_each_entry(cfg, &pci_mmcfg_list, list) {
+ if (cfg->segment)
+ break;
+ pcibios_last_bus = cfg->end_bus;
+ }
+ }
+
if (pci_mmcfg_arch_init())
pci_probe = (pci_probe & ~PCI_PROBE_MASK) | PCI_PROBE_MMCONF;
else {